Calcolatore Variazione di Entropia — Formula
Entropy Change
Entropy measures the disorder or unavailability of energy in a system.
Formula
DeltaS = Q / T
for a reversible process at constant temperature. Positive DeltaS means entropy increases (heat absorbed). The second law states that total entropy of an isolated system never decreases.
Esempio Risolto
1000 J of heat absorbed at 300 K.
- DeltaS = Q / T
- DeltaS = 1000 / 300
- DeltaS = 3.333 J/K